Brake mechanism.



F. C. CGSEO.

BRAKE MECHANlSM.

APPLICAUOM mso sanza. '91s.

L Patented Oef/.221918.

TTOR/VEY UNITE@ STATES 'FAT SNT @FFICE FREDERICK C. COSEO, OF COLUMBUS,OHIO, AS-SIGNOR TO THE JEFFREY MANUFAC- TUBING COMPANY, 0F COLUMBUS,

OHIO, A CORPORATION 0F OHIO.

BRAKE MECHANISIVI.

Specication of Letters Patent.

Patented Oct. 22, 1918.

Application filed September 28, 1916. Serial No. 122,760.

To all whom it may concern.'

Be it known that I, FREDERICK C. Cosuo, a citizen of the United States,residing at Columbus, in the county of Franklin and the State of Ohio,have invented certain new and useful Improvements in Brake Mechanism, ofwhich the following is a specification, reference being had therein tothe accompanying drawing.

The present invention relates to certain new and useful improvements inbrake mechanisms adapted to'be 4used with industrial locomotives, andespecially with that class of industrial locomotives in which the motivepower is supplied by a single electric motor connected with the axles ofthe locomotive through suitable gearing.

It is commonly desirable that the motor man in charge of suchlocomotives should connect and disconnect the couplings between thelocomotive and its load, thus avoiding the employment of an assistant. YTo this end it is expedient that the motor man should ride at the end ofthe locomotive next the load, and that the controlling mechanism shouldbe equally accessible from either-end of the locomotive.

One object of this invention is to provide improved retarding devices,operable from either end of an industrial locomotive,

-which shall effectively retard the rotation of the driving wheels ofsaid locomotive.

A; further object is to provide convenient locking devices, adapted toretain such retarding devices in effective relation to the moving partsof the locomotive, which may be locked from either end of thelocomotive,` and which can be released from the end at which they werelocked, or from the oppo-A site end as convenience may require.

The Adevices by which I attain these objects are fully set forth in theJfollowing specification and illustrated in the accompanying drawings ofwhich:

Figure 1 is a side elevation of a locomotive equipped with my improvedbrake mechanism, the side frame being broken away to show the motor andbrake mechanism.

Fig. 2 is a plan view of the locomotive illustrated in Fig. 1, the coverplates being removed.

Fig. 3 is a detail side view of one of the brake applying hand leversshown in working relation to its notched arc.

ldrive the locomotive.

Fig. 4 is a plan view of the parts shown in Fig. 3.

Fig. 5 is a detail showing of certain parts shown in Fig. 3.

Fig. 6 is a detail view of the brake wheel and the parts associatedtherewith.

Fig. 7 is an assembly of the brake mechanism detached from the otherpart of the locomotive. v

Like numerals refer to similar parts in the several figures.

In Figs. 1 and 2 I have shown, for purpose of illustration, a locomotivehaving a mainframe composed of the side plates 1 and 2 joined'togetherby the cross plates 3 and L1 and by the end frames 5 and 6 on which aremounted the bumpers 7 and the draw bars 8. The locomotive is supportedupon the rails 9 of any suitable track by the driving wheels 10 fixed tothe Vaxles 11 and 12 journaled in journal bearings 13 suitably connectedwith the side plates 1 and 2 of the locomotive frame.

The axles 11 and 12 are connected together by the driving chain 14 whichengages the sprocketwheels 15 and 16 keyed to the axles. Fixed to the.aXle 11 is a nonoverhauling worm wheel 17 in driving engagement withthe worm 18 of the worm shaft 19, which is connected with the armatureshaft 20 of the motor 21 by a suitable shaft coupling 22, to In thelocomotive here illustrated power is supplied to the motor 21 from thestorage battery 23, but, it is to be understood that, this arrangementof parts is immaterial to the spirit of the present invention, and thatwhere operating conditions will permit, any suitable method of supplyingcurrent to the motor may be employed, as by the well known trolleyandtrolley pole.

Mounted upon the cross plate 3 of the locomotive frame is a controller24 by which the motor 21 is controlled. The operative parts of thiscontroller are connected with a shaft 25 extending longitudinally of thelocomotive, and supplied at each end with a hand wheel 26 affordingmeans for the manipulation of the controller at both ends of thelocomotive.

The motor 21 is mounted upon a suspen sion bracket 27 having at one endbearings 28 which engage the axle 11 and supported at the other end by across lbar 29 from the side plates 1 and 2 of the locomotive frame.

.the hand lever 45 will be pressed forward Nearone end the suspensionbracket 27 is shaped to form a. gear case 30 inclosing the worm wheel 17and having suitable bearings 31 and 32 in which the worm shaft 19 isjournaled. The worm shaft 19 is. eX- tended beyond the bearing 31 and tothis eXtensionis liXed a brake wheel 3.3 adaptedl to be clasped by thebrake shoes 34 to retard the rotation of the worm shaft 19' and' throughit the axles 11 and 12 to check the movement of the locomotive. rlhebrake l shoes 34 are joined at their` lower ends, and

device by which the shaft may be rotated to engage or diseIlgagc thebrake shoes 34 with thev brake wheel 38. As theseoperating devices' arealike a description of one will apply toJ both. Fixed at the end of theshaft 40 adjacent the cross plate 3 is a hub4 41 having. a lateralextension 42 upon the face of which is formed a lug 43 which is engagedbythe fork 44 of the hand lever 45. A hinge bolt 46 connects the lever45 toV the lug 43 for limited rotation in a plane longitudinal of theshaft 40. A compression spring 47, interposed between the extension 42and the lever 45, tends! to force them apart and an eXtension 48vv ofthe fork 44 serves, to limitv the outward motion of the lever 45. Formedon the lever 45'is a knife edge fiange 49 adapted to engage the notches50 of the arcuate angle bar 51 attached to the cross plate 3 concentricwith the shaft 40. By this arrangement the shaft 40 may be rotated, bypressure applied tothe hand lever 45, to cause the brake shoes 34 toengage the brake wheel 33: When the shaft 40 has made afsufiicientrotation'to produce the desired pressure on the brake shoes 84,

untily the knife edge 49 engages one of the notches of the arc 51 toprevent rotation in the reverse direction and maintain the pressure uponthe brake shoes. If now it is desiredto release the brake from theopposite en 'd of the locomotive it willV only be necessary to apply arotative force in the brake applying direction upon the hand lever 45 atthat end of the locomotive to allow the disengagement ofthe knifeedge 49fromA the arcv 51 when the splil1g47 Will force the lever 45 to itsouter, or free postoh leavliongkthe shaft 40 free to rotateto releasethe .ra e.

Copies of this patent may be obtained for five cents` each, liy

What I claim is.

1. Inv a brake mechanism,the combination with a locomotive of; the classdescribed, of brake devices associated with the propelling mechanism,and brake controlling devices at both ends of the locomotive by whichthe rotar-'ding effect of the brake devices may be applied and retained,said brake controlling` devices being' releasable from either end of thelocomotive.

2. In a brake mechanism, the combination with a locomotive off the classdescribed, of brake devices associated with the propelling mechanism ofthe locomotive, a shaft eX- tending longitudinally of the locomotive andconnected with the brake devices,y a plu rality of levers mounted uponthe shaft to rotate it to'apply the retarding effect of the brakedevices, means for lockingeach lever to prevent the rotation' of' theshaft inthe brake releasing direction, and. means for roleasing the`locking means by a movement'of either lever.

3-` I'Ii e, brake mechanism. the'oomloioetion with rotative` PQWerdevices including' a drum, of brake devices associated with the drum, ashaft connectedl with the brake. devices, aV plurality ofV leversmounted' uponv the shaft by which it may he rotated to apply theretarding effect 'of' the brake devices to the drum, means for lockingeach lever to prevent the rotation of the 'shaft in' a brakeV releasingdirection and means for releasing he locking means bythe movement ofeither ever.,V

4. In a brake', mechanism the combination with a locomotive Vofthe'classl described, an electric motor having its' armature shaft eX-tending'longitfudiflLili7 Of the'locomoti've and connected tothe aXleythrough worm gearing, a brake drum Connected' to the armature shaft.,brake shoes adapted' to eilsee the drur'n,` and a shaft extendinglongitudinally of the locomotive by the rotation of which,v

the ,brake shoes may be oontrolled- .5.111 a' brake mechanism thecombination with a locomotive ofthe class described, an

electricfmotor having' its armature shaft eX- tending longitudinallyofthe locomotive and connected to the axle through worm gearing, a brakedrum connected. to the armature shaft, brake.v shoesadapted toY enses@the drum, ende shaft extending from end to end of; the looomotiv'ehyJ@he rotation of which theA brake. slices may bei cotr'olled from bothends. ofthe locomotive? In testimony whereof liali'xmv signature, in thepresence of two witnesses. f v, FREDERICK C. COSEOL Witnesses: f'

FL E. MILLER, E. P. SNIVELY.

Washington, D. C.

adire'ssingth'e' Commissioner of laten'ts,

